Patent 10126892 was granted and assigned to Synaptics on November, 2018 by the United States Patent and Trademark Office.
A method for moisture detection includes obtaining absolute capacitive sensor data, and processing circuitry, determining a contiguous region in a capacitive image generated based on the absolute capacitive sensor data, determining a concavity parameter of the contiguous region, and detecting a presence of moisture based at least in part on the concavity parameter. The method further includes operating based on a presence of moisture.